25 Actors You Forgot Guested On The Simpsons

The Simpsons hit the small screen for the very first time December 17, 1989 and, for better or for worse, had managed to stay on the air for a whopping 25 years. A quarter-century is a hell of a long time for any show to stay alive and (relatively) well – the revolutionary cartoon series has enjoyed a longer network run than any other American sitcom ever to air on television, animated or otherwise.

Since its very first season, The Simpsons has been able to talk some incredibly impressive guest stars into lending their voices to the series – while many celebs chose to cameo as themselves, others were game to take on original characters for an episode, or sometimes more. Even the most fervent fans likely forgot about some of these famous Simpsons guest stars – how many of these short-lived characters ring a bell with you?